Hot-air cook-stove



J. M. BABCOCK.

Cook Stove.

Patented Oct 12, 1858;

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UNITED STATES PATENT OFFICE.

JOSEPH M. BABGOCK, OF ALBANY, NEW YORK.

HOT-AIR COOK-STOVE.

Specification of Letters Patent No. 21,731, dated October 12, 1858.

To all whom it may concern.

Be it known that I, JOSEPH M. BABoooK, of Albany, in the county ofAlbany and State of New York, have invented certain new and usefulImprovements in Hot-Air Cook-Stoves; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanying drawings and to the letters of referencemarked thereon.

The nature of my invention consists in the arrangement of the perforatedside plates, the double bottom, and the elevated oven when the same areconstructed as will be hereinafter described.

In order that those skilled in the art may use and make my invention Iwill proceed to describe its operation and construction.

In the annexed drawings Figure 1 is a plan view without the oven. Fig. 2is a side elevation. Fig. 3 is a longitudinal section.

The construction of this stove differs materially from that of othersfor the same purpose in three respects: 1st, in the construction of theouter side platesthese are represented in the drawings by A, A; they areperforated as will be seen near the top with small holes for theadmission of cold air. 2nd, it differs in the construction of the top.C, and (Z, represent the two plates which form said top. Q is the outer,and cl, the inner plate, these plates are separated from each other sothat a channel or flue will be formed between them for heated air. 3rd,the oven being constructed in the shape shown, covers an aperture on thetop of the stove, sitting between the two rims, or flanges, 2', 2'. Thisoven is made double eX- cept at the ends, and the hot air which arisesfrom the double top passes around the oven as shown by the black arrowsand passes into the smoke pipe. The flue around the oven is stopped by aplate on the back side near its exit, in order that the air may be madeto pass around at all times in one direction. This stove is providedwith two side plates as will be seen at A, and A, the inner plate beingsolid.

hen fire is placed in this stove the products of combustion pass in thedirection shown by the red arrows directly back and up the smoke pipe.As the stove becomes heated the air between the two top plates and thetwo side plates becomes rarefied, and begins to pass in the direction ofthe black arrows, the cold air at the same time rushes in through thesmall apertures (11., n, m, m,) and passing between the heated plates,becomes itself heated and rarefied, and passes around the oven and outat pipe 6, which connects the flue around the oven with the smoke pipe.It is very evident that so long as the fire keeps the top and sideplates heated the cold air coming in will con tinue to be heated andpass around the oven, thus heating it. As the hot air chambercommunicates only with the external air, and not with the fire, it cannever be filled with soot and cinders, but will always remain clean. Theoven may at any time be removed and if nothing covers the aperture inthe top over which it sits the hot air will be discharged into the room.

I am aware that perforated side plates are not new, and also thatelevated ovens are not new, and also that double top plates have beenused with apertures communicating with the fire. I am also aware thathot air has been used and passed around the oven by Silas T. Savage forthe purpose of cooking. Hence I do not claim any of these in thisapplication, nor the form and construction of the oven, but

I do claim- The combination of the double top, the perforated sideplates, and the elevated oven, the same being arranged and operated inthe manner and for the purpose herein specified.

JOSEPH M. BABCOGK. Witnesses:

SAMUEL BAKER, THOS. ROBINSON.

